Qingboy
Level 1
Level 1
Member since ‎03-26-2016
‎12-11-2020

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对于交换芯片来说,L2转发是一个最基本的功能。L2功能主要包括ingress过滤、MAC学习和老化、根据MAC+VLAN转发、广播与洪泛、生成树控制等基本功能。从端口进入交换芯片的包首先检查TAG,对于tagged包,判断是否是802.1p的包,(802.1p的包vid为0),对于untagged的包和802.1p的包,根据系统配置加上tag(这些配置包括:基于MAC的vlan、基于子网的vlan、基于协议的vlan和基于端口的vlan)。经过这一步以后,到交换芯片内部的包都变成802.1Q的t...
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Member Since ‎03-26-2016 08:41 AM
Date Last Visited ‎12-11-2020 03:51 AM
Posts 2
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